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Topic: Help! What Is This [noise from converter] ...and How Do We Fix It (Read 179 times) previous topic - next topic
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Help! What Is This [noise from converter] ...and How Do We Fix It
2006 (delivered Mar 07) MB...

When we switch on the light over the curbside sofa there is this high-pitched whine that emanates from the converter box.  It is loud.

When we switch on other 12v lights, the sound diminishes, but is still clearly heard.  This sound does not occur when any other light is on.  The sound is somewhat light bearings when they wear out. 

We have changed the bulb to no effect.

Anyone have a clue?  The cure at the moment is to leave the light off.

TinaP
2006 MB "Wild Thing"...currently in her summer spot  near the National Seashore, Nauset MA...where the great white sharks gather for fine dining on fat seals!


[added some additional description to topic title - Michelle]
2006 MB
Re: Help! What Is This...and How Do We Fix It
Reply #1 –
Fluorescent ballast going bad in the fixture, perhaps, sending electrical noise back through the 12V system to the converter?
Re: Help! What Is This [noise from converter] ...and How Do We Fix It
Reply #2 –
Changing the "bulb" threw me; I wasn't thinking of a "bulb" in the the fluorescent fixture, but Michelle's answer makes sense.
2003 TK has a new home
Re: Help! What Is This [noise from converter] ...and How Do We Fix It
Reply #3 –
So is the sound from the direction of the converter or from the florescent fixture itself? I have a few spare ballasts left over after I converted to LED lights. RonB
RonB (Bostick) living in San Diego
Original owner of "Bluebelle" a '99 TKB
 
Re: Help! What Is This [noise from converter] ...and How Do We Fix It
Reply #4 –
I'll have to check the direction of the sound tomorrow.  I have gotten on my knees and listened at the converter, but didn't think of the direction of the flow of the sound.  More details in the a.m.  Many thanks for responses so far.  

My first thought was the bulb, with the second being the ballast.   And we are running with the original lighting...no LEDs yet.

TinaP
2006 MB